[img] Sinclair ZX Spectrum Circuit Diagrams
MDFS::Info.Comp.Spectrum.Circuits Search

I am gradually scanning and cleaning up the piles of circuits diagrams I have. These are various bits of Spectrum hardware that I have built and used, and other hardware that I have examined and worked out the circuit diagrams from.
Title Description
Backplane Backplane system for the Spectrum. I prototyped a lot of my hardware with this.
Keyboard Spectrum keyboard systems.
Joystick Spectrum joystick interfaces.
Printer
KbdPrnJoy1.gif
KbdPrnJoy2.gif
ASCII keyboard, Centronics printer, Kempston joystick.
ROMs
Interface1
Teletext
Misc bits
128ports1.gif
128ports2.gif
128ports3.gif
128ports4.gif
img457.gif
img459.gif
Unsorted Unsorted stuff
Hardware Spectrum hardware documentation.

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